COMMON MAMMALS OF WESTERN MONTANA. 21 



timber, and in this way come into close contact with man and with 

 domestic animals. When young ticks dropped by chipmunks around 



Fig. 12. — Yellow-bellied chipmunk. 



ranches molt and emerge as adult u wood ticks" they have a good 

 chance to become attached to persons or domestic stock. It is there- 



Fig. 13. — Chipmunk damage in wheat field. 



fore especially important that in any campaign* against spotted fever 

 an effort be made to kill off the chipmunks around ranches. 



484 



